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<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <script>
      let str = `1st place: Winn5ie
2nd place: Piglet
3rd place: Eeyore`;

      // 行首  /^
      console.log(str.match(/^\d/gm));
      console.log(str.match(/\w$/gm));
    </script>
  </body>
</html>
